libgpo/gpo_util.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  Group Policy Object Support
   4  *  Copyright (C) Guenther Deschner 2005-2008
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19 #define TALLOC_DEPRECATED 1
  20 #include "includes.h"
  21 #include "system/filesys.h"
  22 #include "librpc/gen_ndr/ndr_misc.h"
  23 #include "../librpc/gen_ndr/ndr_security.h"
  24 #include "../libgpo/gpo.h"
  25 #include "../libcli/security/security.h"
  26 #undef strdup
  27
  28 #if 0
  29 #define DEFAULT_DOMAIN_POLICY "Default Domain Policy"
  30 #define DEFAULT_DOMAIN_CONTROLLERS_POLICY "Default Domain Controllers Policy"
  31 #endif
  32
  33 /* should we store a parsed guid ? */
  34 struct gp_table {
  35         const char *name;
  36         const char *guid_string;
  37 };
  38
  39 #if 0 /* unused */
  40 static struct gp_table gpo_default_policy[] = {
  41         { DEFAULT_DOMAIN_POLICY,
  42                 "31B2F340-016D-11D2-945F-00C04FB984F9" },
  43         { DEFAULT_DOMAIN_CONTROLLERS_POLICY,
  44                 "6AC1786C-016F-11D2-945F-00C04fB984F9" },
  45         { NULL, NULL }
  46 };
  47 #endif
  48
  49 /* the following is seen in gPCMachineExtensionNames / gPCUserExtensionNames */
  50
  51 static struct gp_table gpo_cse_extensions[] = {
  52         /* used to be "Administrative Templates Extension" */
  53         /* "Registry Settings"
  54         (http://support.microsoft.com/kb/216357/EN-US/) */
  55         { "Registry Settings",
  56                 GP_EXT_GUID_REGISTRY },
  57         { "Microsoft Disc Quota",
  58                 "3610EDA5-77EF-11D2-8DC5-00C04FA31A66" },
  59         { "EFS recovery",
  60                 "B1BE8D72-6EAC-11D2-A4EA-00C04F79F83A" },
  61         { "Folder Redirection",
  62                 "25537BA6-77A8-11D2-9B6C-0000F8080861" },
  63         { "IP Security",
  64                 "E437BC1C-AA7D-11D2-A382-00C04F991E27" },
  65         { "Internet Explorer Branding",
  66                 "A2E30F80-D7DE-11d2-BBDE-00C04F86AE3B" },
  67         { "QoS Packet Scheduler",
  68                 "426031c0-0b47-4852-b0ca-ac3d37bfcb39" },
  69         { "Scripts",
  70                 GP_EXT_GUID_SCRIPTS },
  71         { "Security",
  72                 GP_EXT_GUID_SECURITY },
  73         { "Software Installation",
  74                 "C6DC5466-785A-11D2-84D0-00C04FB169F7" },
  75         { "Wireless Group Policy",
  76                 "0ACDD40C-75AC-BAA0-BF6DE7E7FE63" },
  77         { "Application Management",
  78                 "C6DC5466-785A-11D2-84D0-00C04FB169F7" },
  79         { "unknown",
  80                 "3060E8D0-7020-11D2-842D-00C04FA372D4" },
  81         { NULL, NULL }
  82 };
  83
  84 /* guess work */
  85 static struct gp_table gpo_cse_snapin_extensions[] = {
  86         { "Administrative Templates",
  87                 "0F6B957D-509E-11D1-A7CC-0000F87571E3" },
  88         { "Certificates",
  89                 "53D6AB1D-2488-11D1-A28C-00C04FB94F17" },
  90         { "EFS recovery policy processing",
  91                 "B1BE8D72-6EAC-11D2-A4EA-00C04F79F83A" },
  92         { "Folder Redirection policy processing",
  93                 "25537BA6-77A8-11D2-9B6C-0000F8080861" },
  94         { "Folder Redirection",
  95                 "88E729D6-BDC1-11D1-BD2A-00C04FB9603F" },
  96         { "Registry policy processing",
  97                 "35378EAC-683F-11D2-A89A-00C04FBBCFA2" },
  98         { "Remote Installation Services",
  99                 "3060E8CE-7020-11D2-842D-00C04FA372D4" },
 100         { "Security Settings",
 101                 "803E14A0-B4FB-11D0-A0D0-00A0C90F574B" },
 102         { "Security policy processing",
 103                 "827D319E-6EAC-11D2-A4EA-00C04F79F83A" },
 104         { "unknown",
 105                 "3060E8D0-7020-11D2-842D-00C04FA372D4" },
 106         { "unknown2",
 107                 "53D6AB1B-2488-11D1-A28C-00C04FB94F17" },
 108         { NULL, NULL }
 109 };
 110
 111 /****************************************************************
 112 ****************************************************************/
 113
 114 static const char *name_to_guid_string(const char *name,
 115                                        struct gp_table *table)
 116 {
 117         int i;
 118
 119         for (i = 0; table[i].name; i++) {
 120                 if (strequal(name, table[i].name)) {
 121                         return table[i].guid_string;
 122                 }
 123         }
 124
 125         return NULL;
 126 }
 127
 128 /****************************************************************
 129 ****************************************************************/
 130
 131 static const char *guid_string_to_name(const char *guid_string,
 132                                        struct gp_table *table)
 133 {
 134         int i;
 135
 136         for (i = 0; table[i].guid_string; i++) {
 137                 if (strequal(guid_string, table[i].guid_string)) {
 138                         return table[i].name;
 139                 }
 140         }
 141
 142         return NULL;
 143 }
 144
 145 /****************************************************************
 146 ****************************************************************/
 147
 148 static const char *snapin_guid_string_to_name(const char *guid_string,
 149                                               struct gp_table *table)
 150 {
 151         int i;
 152         for (i = 0; table[i].guid_string; i++) {
 153                 if (strequal(guid_string, table[i].guid_string)) {
 154                         return table[i].name;
 155                 }
 156         }
 157         return NULL;
 158 }
 159
 160 #if 0 /* unused */
 161 static const char *default_gpo_name_to_guid_string(const char *name)
 162 {
 163         return name_to_guid_string(name, gpo_default_policy);
 164 }
 165
 166 static const char *default_gpo_guid_string_to_name(const char *guid)
 167 {
 168         return guid_string_to_name(guid, gpo_default_policy);
 169 }
 170 #endif
 171
 172 /****************************************************************
 173 ****************************************************************/
 174
 175 const char *cse_gpo_guid_string_to_name(const char *guid)
 176 {
 177         return guid_string_to_name(guid, gpo_cse_extensions);
 178 }
 179
 180 /****************************************************************
 181 ****************************************************************/
 182
 183 const char *cse_gpo_name_to_guid_string(const char *name)
 184 {
 185         return name_to_guid_string(name, gpo_cse_extensions);
 186 }
 187
 188 /****************************************************************
 189 ****************************************************************/
 190
 191 const char *cse_snapin_gpo_guid_string_to_name(const char *guid)
 192 {
 193         return snapin_guid_string_to_name(guid, gpo_cse_snapin_extensions);
 194 }
 195
 196 /****************************************************************
 197 ****************************************************************/
 198
 199 void dump_gp_ext(struct GP_EXT *gp_ext, int debuglevel)
 200 {
 201         int lvl = debuglevel;
 202         int i;
 203
 204         if (gp_ext == NULL) {
 205                 return;
 206         }
 207
 208         DEBUG(lvl,("\t---------------------\n\n"));
 209         DEBUGADD(lvl,("\tname:\t\t\t%s\n", gp_ext->gp_extension));
 210
 211         for (i=0; i< gp_ext->num_exts; i++) {
 212
 213                 DEBUGADD(lvl,("\textension:\t\t\t%s\n",
 214                         gp_ext->extensions_guid[i]));
 215                 DEBUGADD(lvl,("\textension (name):\t\t\t%s\n",
 216                         gp_ext->extensions[i]));
 217
 218                 DEBUGADD(lvl,("\tsnapin:\t\t\t%s\n",
 219                         gp_ext->snapins_guid[i]));
 220                 DEBUGADD(lvl,("\tsnapin (name):\t\t\t%s\n",
 221                         gp_ext->snapins[i]));
 222         }
 223 }
 224
 225 #ifdef HAVE_LDAP
 226
 227 /****************************************************************
 228 ****************************************************************/
 229
 230 void dump_gpo(ADS_STRUCT *ads,
 231               TALLOC_CTX *mem_ctx,
 232               struct GROUP_POLICY_OBJECT *gpo,
 233               int debuglevel)
 234 {
 235         int lvl = debuglevel;
 236
 237         if (gpo == NULL) {
 238                 return;
 239         }
 240
 241         DEBUG(lvl,("---------------------\n\n"));
 242
 243         DEBUGADD(lvl,("name:\t\t\t%s\n", gpo->name));
 244         DEBUGADD(lvl,("displayname:\t\t%s\n", gpo->display_name));
 245         DEBUGADD(lvl,("version:\t\t%d (0x%08x)\n", gpo->version, gpo->version));
 246         DEBUGADD(lvl,("version_user:\t\t%d (0x%04x)\n",
 247                 GPO_VERSION_USER(gpo->version),
 248                 GPO_VERSION_USER(gpo->version)));
 249         DEBUGADD(lvl,("version_machine:\t%d (0x%04x)\n",
 250                 GPO_VERSION_MACHINE(gpo->version),
 251                  GPO_VERSION_MACHINE(gpo->version)));
 252         DEBUGADD(lvl,("filesyspath:\t\t%s\n", gpo->file_sys_path));
 253         DEBUGADD(lvl,("dspath:\t\t%s\n", gpo->ds_path));
 254
 255         DEBUGADD(lvl,("options:\t\t%d ", gpo->options));
 256         switch (gpo->options) {
 257                 case GPFLAGS_ALL_ENABLED:
 258                         DEBUGADD(lvl,("GPFLAGS_ALL_ENABLED\n"));
 259                         break;
 260                 case GPFLAGS_USER_SETTINGS_DISABLED:
 261                         DEBUGADD(lvl,("GPFLAGS_USER_SETTINGS_DISABLED\n"));
 262                         break;
 263                 case GPFLAGS_MACHINE_SETTINGS_DISABLED:
 264                         DEBUGADD(lvl,("GPFLAGS_MACHINE_SETTINGS_DISABLED\n"));
 265                         break;
 266                 case GPFLAGS_ALL_DISABLED:
 267                         DEBUGADD(lvl,("GPFLAGS_ALL_DISABLED\n"));
 268                         break;
 269                 default:
 270                         DEBUGADD(lvl,("unknown option: %d\n", gpo->options));
 271                         break;
 272         }
 273
 274         DEBUGADD(lvl,("link:\t\t\t%s\n", gpo->link));
 275         DEBUGADD(lvl,("link_type:\t\t%d ", gpo->link_type));
 276         switch (gpo->link_type) {
 277                 case GP_LINK_UNKOWN:
 278                         DEBUGADD(lvl,("GP_LINK_UNKOWN\n"));
 279                         break;
 280                 case GP_LINK_OU:
 281                         DEBUGADD(lvl,("GP_LINK_OU\n"));
 282                         break;
 283                 case GP_LINK_DOMAIN:
 284                         DEBUGADD(lvl,("GP_LINK_DOMAIN\n"));
 285                         break;
 286                 case GP_LINK_SITE:
 287                         DEBUGADD(lvl,("GP_LINK_SITE\n"));
 288                         break;
 289                 case GP_LINK_MACHINE:
 290                         DEBUGADD(lvl,("GP_LINK_MACHINE\n"));
 291                         break;
 292                 default:
 293                         break;
 294         }
 295
 296         DEBUGADD(lvl,("machine_extensions:\t%s\n", gpo->machine_extensions));
 297
 298         if (gpo->machine_extensions) {
 299
 300                 struct GP_EXT *gp_ext = NULL;
 301
 302                 if (!ads_parse_gp_ext(mem_ctx, gpo->machine_extensions,
 303                                       &gp_ext)) {
 304                         return;
 305                 }
 306                 dump_gp_ext(gp_ext, lvl);
 307         }
 308
 309         DEBUGADD(lvl,("user_extensions:\t%s\n", gpo->user_extensions));
 310
 311         if (gpo->user_extensions) {
 312
 313                 struct GP_EXT *gp_ext = NULL;
 314
 315                 if (!ads_parse_gp_ext(mem_ctx, gpo->user_extensions,
 316                                       &gp_ext)) {
 317                         return;
 318                 }
 319                 dump_gp_ext(gp_ext, lvl);
 320         }
 321         if (gpo->security_descriptor) {
 322                 DEBUGADD(lvl,("security descriptor:\n"));
 323
 324                 NDR_PRINT_DEBUG(security_descriptor, gpo->security_descriptor);
 325         }
 326 }
 327
 328 /****************************************************************
 329 ****************************************************************/
 330
 331 void dump_gpo_list(ADS_STRUCT *ads,
 332                    TALLOC_CTX *mem_ctx,
 333                    struct GROUP_POLICY_OBJECT *gpo_list,
 334                    int debuglevel)
 335 {
 336         struct GROUP_POLICY_OBJECT *gpo = NULL;
 337
 338         for (gpo = gpo_list; gpo; gpo = gpo->next) {
 339                 dump_gpo(ads, mem_ctx, gpo, debuglevel);
 340         }
 341 }
 342
 343 /****************************************************************
 344 ****************************************************************/
 345
 346 void dump_gplink(ADS_STRUCT *ads, TALLOC_CTX *mem_ctx, struct GP_LINK *gp_link)
 347 {
 348         ADS_STATUS status;
 349         int i;
 350         int lvl = 10;
 351
 352         if (gp_link == NULL) {
 353                 return;
 354         }
 355
 356         DEBUG(lvl,("---------------------\n\n"));
 357
 358         DEBUGADD(lvl,("gplink: %s\n", gp_link->gp_link));
 359         DEBUGADD(lvl,("gpopts: %d ", gp_link->gp_opts));
 360         switch (gp_link->gp_opts) {
 361                 case GPOPTIONS_INHERIT:
 362                         DEBUGADD(lvl,("GPOPTIONS_INHERIT\n"));
 363                         break;
 364                 case GPOPTIONS_BLOCK_INHERITANCE:
 365                         DEBUGADD(lvl,("GPOPTIONS_BLOCK_INHERITANCE\n"));
 366                         break;
 367                 default:
 368                         break;
 369         }
 370
 371         DEBUGADD(lvl,("num links: %d\n", gp_link->num_links));
 372
 373         for (i = 0; i < gp_link->num_links; i++) {
 374
 375                 DEBUGADD(lvl,("---------------------\n\n"));
 376
 377                 DEBUGADD(lvl,("link: #%d\n", i + 1));
 378                 DEBUGADD(lvl,("name: %s\n", gp_link->link_names[i]));
 379
 380                 DEBUGADD(lvl,("opt: %d ", gp_link->link_opts[i]));
 381                 if (gp_link->link_opts[i] & GPO_LINK_OPT_ENFORCED) {
 382                         DEBUGADD(lvl,("GPO_LINK_OPT_ENFORCED "));
 383                 }
 384                 if (gp_link->link_opts[i] & GPO_LINK_OPT_DISABLED) {
 385                         DEBUGADD(lvl,("GPO_LINK_OPT_DISABLED"));
 386                 }
 387                 DEBUGADD(lvl,("\n"));
 388
 389                 if (ads != NULL && mem_ctx != NULL) {
 390
 391                         struct GROUP_POLICY_OBJECT gpo;
 392
 393                         status = ads_get_gpo(ads, mem_ctx,
 394                                              gp_link->link_names[i],
 395                                              NULL, NULL, &gpo);
 396                         if (!ADS_ERR_OK(status)) {
 397                                 DEBUG(lvl,("get gpo for %s failed: %s\n",
 398                                         gp_link->link_names[i],
 399                                         ads_errstr(status)));
 400                                 return;
 401                         }
 402                         dump_gpo(ads, mem_ctx, &gpo, lvl);
 403                 }
 404         }
 405 }
 406
 407 #endif /* HAVE_LDAP */
 408
 409 /****************************************************************
 410 ****************************************************************/
 411
 412 static bool gpo_get_gp_ext_from_gpo(TALLOC_CTX *mem_ctx,
 413                                     uint32_t flags,
 414                                     struct GROUP_POLICY_OBJECT *gpo,
 415                                     struct GP_EXT **gp_ext)
 416 {
 417         ZERO_STRUCTP(*gp_ext);
 418
 419         if (flags & GPO_INFO_FLAG_MACHINE) {
 420
 421                 if (gpo->machine_extensions) {
 422
 423                         if (!ads_parse_gp_ext(mem_ctx, gpo->machine_extensions,
 424                                               gp_ext)) {
 425                                 return false;
 426                         }
 427                 }
 428         } else {
 429
 430                 if (gpo->user_extensions) {
 431
 432                         if (!ads_parse_gp_ext(mem_ctx, gpo->user_extensions,
 433                                               gp_ext)) {
 434                                 return false;
 435                         }
 436                 }
 437         }
 438
 439         return true;
 440 }
 441
 442 /****************************************************************
 443 ****************************************************************/
 444
 445 ADS_STATUS gpo_process_a_gpo(ADS_STRUCT *ads,
 446                              TALLOC_CTX *mem_ctx,
 447                              const struct security_token *token,
 448                              struct registry_key *root_key,
 449                              struct GROUP_POLICY_OBJECT *gpo,
 450                              const char *extension_guid_filter,
 451                              uint32_t flags)
 452 {
 453         struct GP_EXT *gp_ext = NULL;
 454         int i;
 455
 456         DEBUG(10,("gpo_process_a_gpo: processing gpo %s (%s)\n",
 457                 gpo->name, gpo->display_name));
 458         if (extension_guid_filter) {
 459                 DEBUGADD(10,("gpo_process_a_gpo: using filter %s (%s)\n",
 460                         extension_guid_filter,
 461                         cse_gpo_guid_string_to_name(extension_guid_filter)));
 462         }
 463
 464         if (!gpo_get_gp_ext_from_gpo(mem_ctx, flags, gpo, &gp_ext)) {
 465                 return ADS_ERROR_NT(NT_STATUS_INVALID_PARAMETER);
 466         }
 467
 468         if (!gp_ext || !gp_ext->num_exts) {
 469                 if (flags & GPO_INFO_FLAG_VERBOSE) {
 470                         DEBUG(0,("gpo_process_a_gpo: "
 471                                 "no policies in %s (%s) for this extension\n",
 472                                 gpo->name, gpo->display_name));
 473                 }
 474                 return ADS_SUCCESS;
 475         }
 476
 477         for (i=0; i<gp_ext->num_exts; i++) {
 478
 479                 NTSTATUS ntstatus;
 480
 481                 if (extension_guid_filter &&
 482                     !strequal(extension_guid_filter,
 483                               gp_ext->extensions_guid[i])) {
 484                         continue;
 485                 }
 486
 487                 ntstatus = gpext_process_extension(ads, mem_ctx,
 488                                                    flags, token, root_key, gpo,
 489                                                    gp_ext->extensions_guid[i],
 490                                                    gp_ext->snapins_guid[i]);
 491                 if (!NT_STATUS_IS_OK(ntstatus)) {
 492                         ADS_ERROR_NT(ntstatus);
 493                 }
 494         }
 495
 496         return ADS_SUCCESS;
 497 }
 498
 499 /****************************************************************
 500 ****************************************************************/
 501
 502 static ADS_STATUS gpo_process_gpo_list_by_ext(ADS_STRUCT *ads,
 503                                               TALLOC_CTX *mem_ctx,
 504                                               const struct security_token *token,
 505                                               struct registry_key *root_key,
 506                                               struct GROUP_POLICY_OBJECT *gpo_list,
 507                                               const char *extensions_guid,
 508                                               uint32_t flags)
 509 {
 510         ADS_STATUS status;
 511         struct GROUP_POLICY_OBJECT *gpo;
 512
 513         for (gpo = gpo_list; gpo; gpo = gpo->next) {
 514
 515                 if (gpo->link_type == GP_LINK_LOCAL) {
 516                         continue;
 517                 }
 518
 519
 520                 /* FIXME: we need to pass down the *list* down to the
 521                  * extension, otherwise we cannot store the e.g. the *list* of
 522                  * logon-scripts correctly (for more then one GPO) */
 523
 524                 status = gpo_process_a_gpo(ads, mem_ctx, token, root_key,
 525                                            gpo, extensions_guid, flags);
 526
 527                 if (!ADS_ERR_OK(status)) {
 528                         DEBUG(0,("failed to process gpo by ext: %s\n",
 529                                 ads_errstr(status)));
 530                         return status;
 531                 }
 532         }
 533
 534         return ADS_SUCCESS;
 535 }
 536
 537 /****************************************************************
 538 ****************************************************************/
 539
 540 ADS_STATUS gpo_process_gpo_list(ADS_STRUCT *ads,
 541                                 TALLOC_CTX *mem_ctx,
 542                                 const struct security_token *token,
 543                                 struct GROUP_POLICY_OBJECT *gpo_list,
 544                                 const char *extensions_guid_filter,
 545                                 uint32_t flags)
 546 {
 547         ADS_STATUS status = ADS_SUCCESS;
 548         struct gp_extension *gp_ext_list = NULL;
 549         struct gp_extension *gp_ext = NULL;
 550         struct registry_key *root_key = NULL;
 551         struct gp_registry_context *reg_ctx = NULL;
 552 #if 0
 553         WERROR werr;
 554 #endif
 555         status = ADS_ERROR_NT(init_gp_extensions(mem_ctx));
 556         if (!ADS_ERR_OK(status)) {
 557                 return status;
 558         }
 559
 560         gp_ext_list = get_gp_extension_list();
 561         if (!gp_ext_list) {
 562                 return ADS_ERROR_NT(NT_STATUS_DLL_INIT_FAILED);
 563         }
 564 /* FIXME Needs to be replaced with new patchfile_preg calls */
 565 #if 0
 566         /* get the key here */
 567         if (flags & GPO_LIST_FLAG_MACHINE) {
 568                 werr = gp_init_reg_ctx(mem_ctx, KEY_HKLM, REG_KEY_WRITE,
 569                                        get_system_token(),
 570                                        &reg_ctx);
 571         } else {
 572                 werr = gp_init_reg_ctx(mem_ctx, KEY_HKCU, REG_KEY_WRITE,
 573                                        token,
 574                                        &reg_ctx);
 575         }
 576         if (!W_ERROR_IS_OK(werr)) {
 577                 talloc_free(reg_ctx);
 578                 return ADS_ERROR_NT(werror_to_ntstatus(werr));
 579         }
 580 #endif
 581
 582         root_key = reg_ctx->curr_key;
 583
 584         for (gp_ext = gp_ext_list; gp_ext; gp_ext = gp_ext->next) {
 585
 586                 const char *guid_str = NULL;
 587
 588                 guid_str = GUID_string(mem_ctx, gp_ext->guid);
 589                 if (!guid_str) {
 590                         status = ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
 591                         goto done;
 592                 }
 593
 594                 if (extensions_guid_filter &&
 595                     (!strequal(guid_str, extensions_guid_filter)))  {
 596                         continue;
 597                 }
 598
 599                 DEBUG(0,("-------------------------------------------------\n"));
 600                 DEBUG(0,("gpo_process_gpo_list: processing ext: %s {%s}\n",
 601                         gp_ext->name, guid_str));
 602
 603
 604                 status = gpo_process_gpo_list_by_ext(ads, mem_ctx, token,
 605                                                      root_key, gpo_list,
 606                                                      guid_str, flags);
 607                 if (!ADS_ERR_OK(status)) {
 608                         goto done;
 609                 }
 610         }
 611
 612  done:
 613         talloc_free(reg_ctx);
 614         talloc_free(root_key);
 615         free_gp_extensions();
 616
 617         return status;
 618 }
 619
 620
 621 /****************************************************************
 622  check wether the version number in a GROUP_POLICY_OBJECT match those of the
 623  locally stored version. If not, fetch the required policy via CIFS
 624 ****************************************************************/
 625
 626 NTSTATUS check_refresh_gpo(ADS_STRUCT *ads,
 627                            TALLOC_CTX *mem_ctx,
 628                            const char *cache_dir,
 629                            struct loadparm_context *lp_ctx,
 630                            uint32_t flags,
 631                            struct GROUP_POLICY_OBJECT *gpo)
 632 {
 633         NTSTATUS result;
 634         char *server = NULL;
 635         char *share = NULL;
 636         char *nt_path = NULL;
 637         char *unix_path = NULL;
 638         uint32_t sysvol_gpt_version = 0;
 639         char *display_name = NULL;
 640
 641         result = gpo_explode_filesyspath(mem_ctx, cache_dir, gpo->file_sys_path,
 642                                          &server, &share, &nt_path, &unix_path);
 643
 644         if (!NT_STATUS_IS_OK(result)) {
 645                 goto out;
 646         }
 647
 648         result = gpo_get_sysvol_gpt_version(mem_ctx,
 649                                             unix_path,
 650                                             &sysvol_gpt_version,
 651                                             &display_name);
 652         if (!NT_STATUS_IS_OK(result) &&
 653             !NT_STATUS_EQUAL(result, NT_STATUS_NO_SUCH_FILE)) {
 654                 DEBUG(10,("check_refresh_gpo: "
 655                         "failed to get local gpt version: %s\n",
 656                         nt_errstr(result)));
 657                 goto out;
 658         }
 659
 660         DEBUG(10,("check_refresh_gpo: versions gpo %d sysvol %d\n",
 661                 gpo->version, sysvol_gpt_version));
 662
 663         /* FIXME: handle GPO_INFO_FLAG_FORCED_REFRESH from flags */
 664
 665         while (gpo->version > sysvol_gpt_version) {
 666
 667                 DEBUG(1,("check_refresh_gpo: need to refresh GPO\n"));
 668
 669                 result = gpo_fetch_files(mem_ctx, ads, lp_ctx, cache_dir, gpo);
 670                 if (!NT_STATUS_IS_OK(result)) {
 671                         goto out;
 672                 }
 673
 674                 result = gpo_get_sysvol_gpt_version(mem_ctx,
 675                                                     unix_path,
 676                                                     &sysvol_gpt_version,
 677                                                     &display_name);
 678                 if (!NT_STATUS_IS_OK(result)) {
 679                         DEBUG(10,("check_refresh_gpo: "
 680                                 "failed to get local gpt version: %s\n",
 681                                 nt_errstr(result)));
 682                         goto out;
 683                 }
 684
 685                 if (gpo->version == sysvol_gpt_version) {
 686                         break;
 687                 }
 688         }
 689
 690         DEBUG(10,("Name:\t\t\t%s (%s)\n", gpo->display_name, gpo->name));
 691         DEBUGADD(10,("sysvol GPT version:\t%d (user: %d, machine: %d)\n",
 692                 sysvol_gpt_version,
 693                 GPO_VERSION_USER(sysvol_gpt_version),
 694                 GPO_VERSION_MACHINE(sysvol_gpt_version)));
 695         DEBUGADD(10,("LDAP GPO version:\t%d (user: %d, machine: %d)\n",
 696                 gpo->version,
 697                 GPO_VERSION_USER(gpo->version),
 698                 GPO_VERSION_MACHINE(gpo->version)));
 699         DEBUGADD(10,("LDAP GPO link:\t\t%s\n", gpo->link));
 700
 701         result = NT_STATUS_OK;
 702
 703  out:
 704         return result;
 705
 706 }
 707
 708 /****************************************************************
 709  check wether the version numbers in the gpo_list match the locally stored, if
 710  not, go and get each required GPO via CIFS
 711  ****************************************************************/
 712
 713 NTSTATUS check_refresh_gpo_list(ADS_STRUCT *ads,
 714                                 TALLOC_CTX *mem_ctx,
 715                                 const char *cache_dir,
 716                                 struct loadparm_context *lp_ctx,
 717                                 uint32_t flags,
 718                                 struct GROUP_POLICY_OBJECT *gpo_list)
 719 {
 720         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
 721         struct GROUP_POLICY_OBJECT *gpo;
 722
 723         if (!gpo_list) {
 724                 return NT_STATUS_INVALID_PARAMETER;
 725         }
 726
 727         for (gpo = gpo_list; gpo; gpo = gpo->next) {
 728
 729                 result = check_refresh_gpo(ads, mem_ctx, cache_dir, lp_ctx, flags, gpo);
 730                 if (!NT_STATUS_IS_OK(result)) {
 731                         goto out;
 732                 }
 733         }
 734
 735         result = NT_STATUS_OK;
 736
 737  out:
 738         /* FIXME close cli connection */
 739
 740         return result;
 741 }
 742
 743 /****************************************************************
 744 ****************************************************************/
 745
 746 NTSTATUS gpo_get_unix_path(TALLOC_CTX *mem_ctx,
 747                            const char *cache_dir,
 748                            struct GROUP_POLICY_OBJECT *gpo,
 749                            char **unix_path)
 750 {
 751         char *server, *share, *nt_path;
 752         return gpo_explode_filesyspath(mem_ctx, cache_dir, gpo->file_sys_path,
 753                                        &server, &share, &nt_path, unix_path);
 754 }
 755
 756 /****************************************************************
 757 ****************************************************************/
 758
 759 char *gpo_flag_str(TALLOC_CTX *ctx, uint32_t flags)
 760 {
 761         char *str = NULL;
 762
 763         if (flags == 0) {
 764                 return NULL;
 765         }
 766
 767         if (flags & GPO_INFO_FLAG_SLOWLINK)
 768                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_SLOWLINK ");
 769         if (flags & GPO_INFO_FLAG_VERBOSE)
 770                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_VERBOSE ");
 771         if (flags & GPO_INFO_FLAG_SAFEMODE_BOOT)
 772                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_SAFEMODE_BOOT ");
 773         if (flags & GPO_INFO_FLAG_NOCHANGES)
 774                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_NOCHANGES ");
 775         if (flags & GPO_INFO_FLAG_MACHINE)
 776                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_MACHINE ");
 777         if (flags & GPO_INFO_FLAG_LOGRSOP_TRANSITION)
 778                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_LOGRSOP_TRANSITION ");
 779         if (flags & GPO_INFO_FLAG_LINKTRANSITION)
 780                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_LINKTRANSITION ");
 781         if (flags & GPO_INFO_FLAG_FORCED_REFRESH)
 782                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_FORCED_REFRESH ");
 783         if (flags & GPO_INFO_FLAG_BACKGROUND)
 784                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_BACKGROUND ");
 785
 786         return str;
 787 }
 788
 789 /****************************************************************
 790 ****************************************************************/
 791
 792 NTSTATUS gp_find_file(TALLOC_CTX *mem_ctx,
 793                       uint32_t flags,
 794                       const char *filename,
 795                       const char *suffix,
 796                       const char **filename_out)
 797 {
 798         const char *tmp = NULL;
 799         struct stat sbuf;
 800         const char *path = NULL;
 801
 802         if (flags & GPO_LIST_FLAG_MACHINE) {
 803                 path = "Machine";
 804         } else {
 805                 path = "User";
 806         }
 807
 808         tmp = talloc_asprintf(mem_ctx, "%s/%s/%s", filename,
 809                               path, suffix);
 810         NT_STATUS_HAVE_NO_MEMORY(tmp);
 811
 812         if (stat(tmp, &sbuf) == 0) {
 813                 *filename_out = tmp;
 814                 return NT_STATUS_OK;
 815         }
 816
 817         path = talloc_strdup_upper(mem_ctx, path);
 818         NT_STATUS_HAVE_NO_MEMORY(path);
 819
 820         tmp = talloc_asprintf(mem_ctx, "%s/%s/%s", filename,
 821                               path, suffix);
 822         NT_STATUS_HAVE_NO_MEMORY(tmp);
 823
 824         if (stat(tmp, &sbuf) == 0) {
 825                 *filename_out = tmp;
 826                 return NT_STATUS_OK;
 827         }
 828
 829         return NT_STATUS_NO_SUCH_FILE;
 830 }
 831
 832 /****************************************************************
 833 ****************************************************************/
 834
 835 ADS_STATUS gp_get_machine_token(ADS_STRUCT *ads,
 836                                 TALLOC_CTX *mem_ctx,
 837                                 struct loadparm_context *lp_ctx,
 838                                 const char *dn,
 839                                 struct security_token **token)
 840 {
 841 #ifdef HAVE_ADS
 842         struct security_token *ad_token = NULL;
 843         ADS_STATUS status;
 844         NTSTATUS ntstatus;
 845
 846         status = ads_get_sid_token(ads, mem_ctx, dn, &ad_token);
 847         if (!ADS_ERR_OK(status)) {
 848                 return status;
 849         }
 850         ntstatus = merge_nt_token(mem_ctx, ad_token, get_system_token(),
 851                                   token);
 852         if (!NT_STATUS_IS_OK(ntstatus)) {
 853                 return ADS_ERROR_NT(ntstatus);
 854         }
 855         return ADS_SUCCESS;
 856 #else
 857         return ADS_ERROR_NT(NT_STATUS_NOT_SUPPORTED);
 858 #endif
 859 }